Spirit-level.



N0 MODEL.

J/WENTOR Win/E5555 l By K UNIT D STATES DANIEL A. JAMES, OF AKRON, OHIO,

ASSIGNOR TO THE BAKER-MOMILLEN COMPANY, OF AKRON, OHIO, A CORPORATION OF OHIO.

SPIRIT-LEVEL.

SPECIFICATION forming part of Letters Patent No. 778,130, dated December 20, 1904.

Application filed. March 8, 1904. Serial No. 197,099.

To aZZ whom it may concern.- I

Be it known that I, DANIEL A. J AMES, a citizen of the'United' States, residing at Akron,

in the county of Summit and State of Ohio, havejnvented new and useful Improvements in Spirit-Levels, of which the following is .a specification.

This invention relates to improvements in spirit-levels; and the object is to provide an improved construction of spirit-level having simple and effective means for attaching the liquid-tube to the support and conveniently adjusting the same.

With the above object in View the invention consists in the novel features of construction hereinafter fully described, particularly point- 7 ed out in the claims, and clearly illustrated by the accompanying drawings, in which Figure 1 is a view, partly in section and partly in elevation, of a spirit-level embodying my invention; Fig. 2, a longitudinal sectional View taken through the incasing tube for the liquid-tube andits attaching-bracket, and Fig. 3an end elevation of the same.

Referring now more particularly to the accompanying drawings,1 indicates the transparent tube for the liquid, and 2 a transparent incasing tube therefor, said liquid-tube being held in the incasing tube by means of ring-like supports 3,' preferably of rubber. Secured about the center of the liquid-tube is a broad band 4, of paper or other suitable material, colored black or some other dark color.

.S'aid band constitutes the index to indicate the position of the bubble when the instrument is level. A decided-advantage is secured by the use of this broad indicating-band instead of the mere mark or line ordinarily used, as a small portion of the bubble projecting beyond each edge of the band the exact level :is more readily ascertained.

Attached to one end of the incasing tube is a metal clip 5. This clip is attached to the tube by means of an interposed strip 6 of felt or other suitable material, which is cemented to the tube and to which the clip is cemented or glued. Secured to the clip by riveting or otherwise is an attaching plate or bracket 7, formed with perforated ears 8,

which are inclined outwardly from the body 5 o.f.'the plate.

The body or support 9 of the spirit-level is formed with a recess lO to receive the spirittube and its incasing tube, said recess being slightly larger than the tube to permit of the adjustment of the latter, and at its outer end is enlarged and formed with outwardly-inclined walls 11 to receive .the attaching-ears.

8. The bracket is attached to the support by screws 12 passing through the perforated ears, and by loosening one of these screws and tightening the other, and vice versa, the spirittube may be adjusted laterally at its upper end in either direction. A layer of felt or similar material 12 is cemented around the 5. lower end of the incasing tube, so that it will fit closely intothe recess at that end, whereby the lower end acts as a fulcrum, while the up: "per end of the tube swings laterally when adjusted.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is

1. A' transparent spirit-tube, a transparent incasing tube for said spirit-tube, ametal clip secured to one end of the incasing tube, and a bracket secured to said clip having outwardly-inclined perforated ears for attaching the tube to a support.

2. In a spirit-level, the combination with a 30 support having a recess formed therein with outwardly-inclined shoulders at the outer end thereof, of a spirit-tube, and a bracket for attaching the tube in said recess having outwardly-inclined perforated ears, and screws 5 thereof, of a spirit-tube, yielding material sur- In testimony whereof I have signed my name rounding the inner end of the said spirit-tube, to this specification in the presence of two suba bracket for attaching the tube to a support scribing Witnesses.

having outwardly-inclined perforated ears, DANIEL A. JAMES. 5 and screws passing through the said perfo- Vitnesses:

rated ears into the shoulders for adjusting the HELEN HINMAN,

tube in the recess. J. H. ADAMS. 

